On 7/10/2018 2:32 PM, Savageduck wrote:
On Jul 10, 2018, PeterN wrote
(in article ):

On 7/10/2018 1:56 AM, David Taylor wrote:
On 09/07/2018 20:04, Savageduck wrote:
[] Check this shot and a 100% crop of the top of the sail.

https://photos.smugmug.com/photos/i-f5k8TQh/0/9ebe2259/O/i-f5k8TQh.jpg

https://photos.smugmug.com/photos/i-xJ9w5gP/0/a2225efd/O/i-xJ9w5gP.jpg

BTW: that was 270mm, ISO 400, 1/3500 @ f/5.0.

Looking at the top edge of the black bar at the top, I have the
impression of blue at the top of the bar, and yellow at the bottom.
Possibly a little CA, but nothing to be concerned about.

I checked on my large monitor, which is color corrected, and did not
notice any CA on this image.

I didn’t think that I had any CA issue.


I don't think so either.

--
PeterN